Howell, L. (1980). People are the subject: Stories of Urban Rural Mission. World Council of Churches, Commission on World Mission and Evangelism.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Howell, Leon. People Are the Subject: Stories of Urban Rural Mission. Geneva: World Council of Churches, Commission on World Mission and Evangelism, 1980.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Howell, Leon. People Are the Subject: Stories of Urban Rural Mission. World Council of Churches, Commission on World Mission and Evangelism, 1980.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.